Envelop-machine.



N0. 850,879. PATBNTED APR. 16, 19o?.

C'. E. DULIN. ENVELOP MACHINE.

APPLICATION FILED HOV. 5, 1901.

6 SHEETS-SHEET 1.

celu vanto@ @Hanau No.'850,879L

. DATBNTED APR. 15, 1907.

C. E. DULIN. BNVBLOP MACHINE. APPLIUATIQN FILED Nov. 5, 1901.

6 SHEETS-SHEET 2.

PATENTED APR. 16

C. E. DULIN. ENVELOP MACHIN APPLwAToN FILED Nov. 5, 1901.

s sHEETs-SHEET a.

No. 850,879. PATENTED APR. 16, 1.907.l C. E. DULIN. ENVBLUP MACHINE. APPLICATION FILED Nov. 5. 1901.

ETS-SHEET 4,.

will.

10.850,879. PATENTED APP..16, 1907. 0. E. DULIN. ENVBLOP MACHINE.

APPLICATION FILED NOV. 5. 1901.

6 SHEETS-SHE T 6.

No. 850,879. v v PATENTED APR. 16, 1907. f

C. E. DULIN.

ENVELOP MACHINE.

APPLICATION FILED Nov. 5, 1901.

6 SHEETS-SHEET 6.

UN 1TFT)` STATES' PATEN T OFFICE.

CHARLES E. DULIN, OE SANDY HILL, NEW YORK, ASSIcNoR vrro-UNION PAPER. BAC MACHINE COMPANY, OE PHILADELPHIA, PENNSYLVA-v NIA, A CORPORATION OE PENNSYLVANIA.

ENvELoP-MACHINE.

Speeication of Letters Patent.

Patented April 16, 1907.

Appiiaiun ned 'November 5, 190i. Serial No. 81,166.

eitizen of the United siding in Sandy Hill, in the county of Washington and State of New York, have invented certain new and useful Improvements in- Enytail of the machine.

velop-Machines, of which the following is a' true and exact description, reference being .h'ad' to the accompanying drawings, which .form a partthereo My invention relates to machinery for' `manufacturing envelops from a continuouslyfed Strip of paper, and has for its object to provide for the rapid and eiicient manufacture of a peculiar style of envelop.

The nature of my improvements will be b'est'understood as described in connectionl with the drawings in which they are illustrated, andin Which- Figure 1 is a Fig. 2, a side elevation with the belt-wheels on the main driving-shaft removed Fig. 2n, front elevations of certain rolls forming a de- Fig. 3 is a sectional elevation through the o erative parts of the machine, taken on the ine 3 3 of Fig. 1. Fig. 4"'is a lan view of the table upon which the web ofp :formed into envelops.. Fig. 5 is an inverted View of the oscillating cutten used to sever the blanks in connection with the tableV of Fig.` 4. Fig. 6 is a lon itudinal section through the cutter andv tab e, taken ason the line 6 6 of Fig. 5, showing the cutter in elevated position. Fig. 7 is a similar sectional view showing the cutter in depressed position. Fig. 8 is a sectional view similar to that shown in Fig. 3, showing the knife in depressed position. Fig. 9 is a top view ol'l the oscillating cutter. Fig. 10 isa side view of theJ Stripper attached tothe cutter, taken as on the hne -10 10 of Fig.l 9. Fig. 11 is a plan view ofl the stripper. Fig.v 12 is a plan. View oftheed e-folding device; Fig. 13, a Similar view o the upy er part of the said device; Fig. 14, aj-side elgvation of the said upper part. Fi .15 is a-plan viewof the lowerpart of the foFd-forming device; Fig. 16, a longitudinal section t ereof, taken on the line 16 16 of Fig. 15. y Fig. 17 is a cross-section through the fold-forming device assembled, taken on the line 17 17 of Fig. 13,' Fig. 18, a similar cross-section taken as on the line 18 plan view of the machine;

paper is Severed into lengths to be" V 18 ofFig. 15. Fig. 19 is a rear elevation of the active parts of the'machine with the paste-box and the paste-wheel working in said box removed. Fig. 20 is a sectional elevation of the taken as on the line 20 20 of Fig. 19 and showing the rolls in the act of forming theV crease. Fig. 21 is a similar view showing the operation o forming the nal fold in the envelop. Fig. 22 is a detached view showing the construction of the cam P3; Fig. 23, a detached view showing the construction of the cam O3; Fig. 24, a detached view showing the actual operation of the creasing-blades upon the blank. Fig. 25 is a cross-section through the trimming-rolls, taken as on the line 25 25 of- Fig. 26. Fig. 26 is a front view of the trimming-rolls. Figs. 27 and 28 are sectional views of the trimming-rolls, showing their operation upon the Sections of the paper strip. Fig. 29 is a plan view ofthe Strip, showing the cuts made upon it in converting it into blanks to be manufactured into envelops. Fi'. 30 iS a view of the blank; Fig. 31,` a View o the blank with its edges turned in and pasted, and Fig. 32 a view of the complete envelop.

A indicates the frame of the machine, B the shaft-su porting cones B u on which in turn the rollof paper (indicate at t) is supported. From this roll the paper strip P vis shown as leading upward over guide-rolls B2 and B3 to the first air of feed and slitting rolls, (indicated at 2 07,) the said roll C7 being secured on the main driving-shaft C of the machine, to which are also secured fast and loose pulleysC and C2, a hand-Wheel C3, a gear-wheel C4, which engages a gear-wheel pasting and creasing rolls, l

D8 on the Shaft D, to which is secured the up- V per'leCd-roll D2. This upper feed-roll is, as shown, grooved at D3 D3, and the lower feedroll C7 is provided with projecting knives C8, which extend into these grooves and which slit the :iper ont-he lines T4 T4 of Fig. 29. The shal'lt C has also attached to it a cam (indicated at (1) and asecond gear-wheel, (indicated at 05,) which through an intermediate gear c5 (See Fig. 1) communicates motion to a. gear G, secured to tho Shaft G, to which shaft issecured a gear-wl1celG2, driving through the gear-wheel H the lshaft H, and also a third gear-Wheel G3, which communicates motion through the intermediate gear g to loo the shaft I through its gear-wheel I and to the shaft L through its gear-wheel L', said gear-wheel L" in turn actuating the shaft M through its gear M The gear-wheel G", be-

fore mentioned, in turn communicates motion through an intermediate gear-wheel gX to the shaft O, through. its gear O', and this shaft in turn is provided with a gear-Wheel which engages the gear-wheel P, secured to ra the shaft P, the said gear-wheel P also engaging and driving a shaft Q through its gear g. All of theabove parts, it will be observed,

lare positively and constantly in motion.

Returning now to the o erative art of the machine, the slitting an feed ro ls on' vthe shaft C and D slit and deliver the paper over the tablel E, which near its up er end, is formed with an upwardly-exten ing shoulder E', said shoulder supporting a knife-edge zo e and a` backwardly-extending receivingplate,v (indicated at et) while the table proper, E, is shown as covered -by a thin plate e and near its bottom edge is provided with lateral guide-blades, (indicated at E2 E2.) Extending across the table and sup orted in /suitable bearings is the rock-shaftlh` of the oscillatory cutter, having attached to it a lever F, which is held in contact with the cam C5by the action of a spring F2. As shown,- 39 the rock-shaft F 1's cut away, iiattened, and

somewhat extended at the center, as indicated at f, and to the under side of this fiattened portion is secured what is, preferably as shown, a circular knife F5, havin a downfafandv secured to the oscillatory shaft by acentral bolt, (indicated at F5.) This circular construction of the knife enables it toY be angularly adjusted and f resh cutting 4Q edges brought into operation. A lso secured to the flattened portion of the oscillatory shaf-t areA the cutters or knives F4, having sharp cutting edges4 fitting against the opposite sides of the circular knife F3. Extending close to the face of the' knife Favand between the` cutters F4 is the strip erlate F5, having its front end 'preferalgly ent slightly u ward, as indicated at f5. lThis stri per-pfate is by means of upwardly-exten ing pins and springsF9 secured to iingers F8, extending out from the flattened portion f of the shaft, the springs holding the stripper normally flush with the knife-edge to ermit it to move upward when necessary:

he sha e of the stationary cutter e is shown in ig. 4 and corres onds to the cutl ters F4 and the portion of t e circular cutter lF3 lying between these stationary cutters. The strip of paper is fed over the table E, and

6o when a determined length has been fed forward the cam C, acting on the arm F causes the rock-shaft F to move downward from the position shown invFig. 6 to that shown in ig. 7, severing the paper o'n the lines T T2,

6 5 as indicated in Fig. 29, the stripper F5 holdwardly-extending cutting edge (in icated at of the strip against the top of the cutter e, as

described,l prevents it from moving forwaz d but the feed-rolls are in constant operation, and there is conse uently a slack formed between the feed-rol s and the stri er; but as soon as the upward movement o the knife,

carrying with it the stripper, disengagesthe edge of the'paper the elasticity of the paper causes it to spring forward, taking up the slack, so that the machine operates exactly ps hough there were no interruption in its Before the paper is severed, as above described, its forward end, passing between the guides E2, has come between the rolls H2 and G4, which rolls are secured on the shafts H and G and act partly as feed-rolls and partly as trimming-rolls. The -Iower roll G4 has a copper center, on each side of which are rawhide extensions, (indicated at G5 G5, see Fig. 26,) and from these rawhide extensions extepld ins, (indicated at GBG) The upper ro ones being indicated at h2 h5 and the inner one being angularly adjustable on the shaft. To the outer section h2 of the roll ,are secured the knives H4 H4, which make the cuts indi' cated at T3 T3 in Fig. 29, the o erationof the rolls H2 and G4 being to sever om the blank the strips indicated at T T in Fig. 29 and complete the formation of the blank, as shown in Fig. 30.

' As the blank is fed from the table E to the rolls G4 andH2 it is pressed down over the pins G5, which pass into the grooves between the strips T5 to the face of the roll G4 as they are cut cH from the blank, as shown in Fig. 26. These strips T5 are finally stripped 'from .the roll G4 by the action of stri ping-fingers G7. `(Shown in action in Fig. 28. The blanks next pass to the edge-folding mechanism, being delivered from the rolls H2 G4 over the guide-fingers J4 J4 tothe folding mechanism (best shown in Figs. 12 to 18) and consisting of a lower plate J, to which the fingers J4 are attached and which is formed with side walls of plowshare-like character) indicated at J J merging into substantially vertical walls J2. Between these walls of the plates J is placed the folderportion K, having walls K', also of a lowsharedike character, which act to turn t e edges of the pa er blank down'- ward over a thin plate K3, w iich is secured to the bottom of the portion K and the front 2 ismade in three-sections', the outer lOO 4105 the roll-sections H2 and h2 and which hold lio end of whichl projects forward and turns j slightly upward, as indicated. To the rear end of the portion K are secured the presserthem. into more permanent shape, the action of this folding device being to fold over, on the lines T7 'l`7 the proj ccting edges T8 T8 of the blank, as shown in F ig. 31. To facilitate the feeding of the blanksthrough the edge-folding devices described, l have shown the rolls l2 i2, which extend through the openings J3 and K4 in the lower fold-forming device J' and the thin plate K3. The roll I2 is secured on the shaft I, and the roll i2 on the shaft t,

shafts I t with oalarming-rolls,I3v @3, as shown in Fig. 2a.

From the edge-folding mechanism the blanks pass between-feedrolls L2 and M2 on the shafts L and M and are .fedover the guide-plate N tothe pasting and creasing rolls to b e described. As shown, the roll M2, which is a narrow one, isgformed with a flattened ortion M3, which Irelaxes the grip ofthe rol s on the. blanks after they are engaged bv the creasing device on the succeeding pair of rolls. The 'presser-ngersvK?, as shown, act" uponthe surface of the lower roll L2.y

To the shaft O is secured a roll O, havin grooves formed in it, as shown at O5 05,` an n set across its face a block O4, (best shown Fig. 24,) having formed along its face'a cavity forming at lts base a bearing for a shaft O1", from which shaft extends up into the` cavity the creasing-blade. O". The Ishaft O1 (see Fig. `19),l has attached toy its end a crank arm or lever O, carryin cam-roller O12, which by a spring O13 is he d against the face of the cam O3, which cam is secured on`a sleeve lO",`supported on the shaft O and angularly adjustable thereon by means of its segmental extension O7, (see Fig..23, )having in it a slot O8, through which extends/.a bolt o8, (see Fig. 19,) 'securing it to the 'ffame A.

lt will be obvious that by adjusting the seg- 4I claim as new, and desire to secure by- Letment O7 the action ofthe cam upon the arm of the cam-"shaft will .be varied. Secured to the shaft P, which is driven from the shaft-O,

are the sectional rolls'P2 P2, acting against the face of the roller O4, and between which lies'hthe sectional-roll p2 of smaller diameter.

On the rolls P2 are secured paste-applying segments (indicated at P4) and the function of which is to apply lines of paste to the folded edges of the blank, as indicated in Fig.'31. The central roll p2 is referably cut away, as indicated at P5, an through this cut-away lportion of this roll, as well as through the flanking-rolls, extends the 'shaft'- in contact with the surface of the pastewhecl Q, secured to the shaft Q and running in the paste-box Q2, Q3 indicating the usual knife-blade of the paste-box, close to which the edge of the roller Q runs. R R are fingers, the front' ends of which lie in the grooves O5 of the roll O4, the said fingers being secured to a shaft R, from which extend lever-arms' R2, carrying their free ends rolls R3 R3, which are held against the face of the roller O4 by the action of springs R4 R, (Shown in Fig. 19.)

The blanks folded' as shown in Fia'. 31 passl over the guides N between the rolls on the shafts O and P and are enga ed by thev groove-forming plates on said ro s, as shown Y in Fig. 24 the 'a er beingA pressed down by the fingerl'P bgtvxgeen the finger O9 andlthe wall of the cavity, in which it operates along Vof' the rolls O4 and R3, the front end of theblank T1-1 of the. blank, which has been fed 4 between guide-plates N N, (see Figs. 2O and 21,) being retracted therefrom and the blank folded gradually, as shown in Fig. 21, to the formushown-in Fig. 32 but the paste-applying se ments Pfhave, a plied lines `of paste to the fo ded edges T3 an completes the forma.- tion of the envelop., the completed envelop being stripped from the roller O4 bythe fin- IOO gersl R R, over which it passes, as shown in Y ertain features ofl invention shown and described, but not specifically claimed herein, are so claimed in my copending application, Serial No.^328,648, filed the 1st lay of August, 1906, as a division of this applica- 'tionl z vHaving now describedmy invention, what ters Patent, is-

1.. In an envelop-machine, the combination with mechanisms for severing lengths from apa er stri and trimming such lengthsinto the orm o blanks having their front ends narrower than their rear ends, of flapturning mechanism acting to fold the edges 'l8 of vthe blank over on the part T10 as the' blanks are fed, through the machine, sa1d mechanism consisting of a `farmer having lowshare-like sides and a central thin plate ying between said sides. and over which they turn the edges T8 and fold pressing-lingers K5 K5, situated in the rear of the former and lthin plate and acting to further define the folds-of the edges. l

2. In an envelop-machine, the'combination with mechanisms for severing lengths from apa er stri and trimming such lengths into the orm o blanks having their front ends narrower than their rear ends, of flapturnin mechanism acting to fold the edges Ts of 51e blank over on 4the part T10 as the blanks are fed throngh the machine, paster mechanism for applying lines of paste to the folded edges, a pair of creasin rol1s, actin after the edges are folded am? pasted, sai

creasing-rolls 'being adapted to form the crease-line Tg across the blank and feed-rollers subsequently acting to engage' thel blank at the crease-line T9 and press the end T11 down on the folded and pasted edges T8.

3. In an envelop-machine 'the combination with mechanlsms forseverin lengths from a paper strip and trimming suc lengths into the 'form of blanks. having their front ends narrower than their rear ends, of flapturnin mechanism acting to fold the edges- T8 of t e blank over on the part T10 as the blanks are fed through the machine, paster and creasing rolls P4 Oacting to apply lines down on the folded'and parted edges.

CHAS. E. DULIN. Witnesses: f

A. C. GETTEN,

" FRED E. EARLE. 

